Would a Japanese Taranto attack change Pearl Harbor readiness?

Would Japanese participation at Taranto make the United States take shallow-harbor carrier attacks more seriously?

Probably, because Japanese aircraft inflicting obvious follow-on devastation would make the lesson directly relevant to Pacific defenses.

A British night attack followed by Japanese aircraft at dawn could produce overwhelming evidence of what carrier aviation could do in a confined harbor. Direct Japanese participation would make the technical and doctrinal connection to Pacific bases harder for American observers to dismiss.